Hovercraft 2016-2017

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SHHSCaptain
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Re: Hovercraft 2016-2017

Post by SHHSCaptain »

@Chalker: Would fans be allowed? The rules I found specifically say "propellers". If fans are not allowed, then what is the delineation between propeller and fan?
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Re: Hovercraft 2016-2017

Post by chalker »

SHHSCaptain wrote:@Chalker: Would fans be allowed? The rules I found specifically say "propellers". If fans are not allowed, then what is the delineation between propeller and fan?
I think you are getting hung up in a linguistic issue that doesn't really exist. According to the definitions of each:
http://onelook.com/?w=fan&ls=a "An apparatus with rotating blades that creates a current of air for cooling or ventilation."
http://onelook.com/?w=propeller&ls=a "A mechanical device for propelling a boat or aircraft, consisting of a revolving shaft with two or more broad, angled blades attached to it."

Both involve blades, but the propeller is for moving a device, whereas a fan is for cooling. Hence, if you were to take a 'fan' and mount it on your hovercraft, I think it immediately becomes a propeller by definition.

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Re: Hovercraft 2016-2017

Post by Zioly »

Question to all: What are some photogate timers that you would recommend?
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Re: Hovercraft 2016-2017

Post by chalker »

Zioly wrote:Question to all: What are some photogate timers that you would recommend?
The Vernier ones are very commonly used in SO competitions: https://wardsci.com/store/product/88918 ... -photogate

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Re: Hovercraft 2016-2017

Post by antoine_ego »

Are we allowed to use prefabricated drone frames?
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Re: Hovercraft 2016-2017

Post by windu34 »

antoine_ego wrote:Are we allowed to use prefabricated drone frames?
I don't see why not as long as it fits the rules (which I doubt because I think it will limit # of motors/fan blades to two)
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Re: Hovercraft 2016-2017

Post by retired1 »

The historic rule is that it has to have at least one major change. I would be interested to see how you would modify a drone into a hovercraft, IE 1 lift motor and 1 propulsion motor as stated in last years trial rules.
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Re: Hovercraft 2016-2017

Post by windu34 »

Chalker, can you confirm that wheels on the sides of the hovercraft are not prohibited? I remember this being discussed at length and want to confirm. Thanks
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Re: Hovercraft 2016-2017

Post by chalker »

windu34 wrote:Chalker, can you confirm that wheels on the sides of the hovercraft are not prohibited? I remember this being discussed at length and want to confirm. Thanks
As of right now, correct, they are allowed.

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Re: Hovercraft 2016-2017

Post by LIPX3 »

chalker wrote:
windu34 wrote:Chalker, can you confirm that wheels on the sides of the hovercraft are not prohibited? I remember this being discussed at length and want to confirm. Thanks
As of right now, correct, they are allowed.
Chalker, are you allowed to use a skirt on a hovercraft?
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